Consolidated Balance Sheets (USD $) In Thousands	Jul. 02, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 72,847	$ 55,938
Trade accounts receivable, net of allowance for doubtful accounts of $1,184 in 2011 and $1,389 in 2010	63,608	68,691
Costs and estimated earnings in excess of billings on long-term contracts	24,247	21,980
Inventories	48,731	41,649
Deferred income taxes	2,317	3,891
Other current assets	8,228	7,319
Total current assets	219,978	199,468
Property, plant and equipment:
Land	1,150	1,150
Buildings and leasehold improvements	19,463	19,115
Machinery and equipment	123,086	117,855
Furniture and fixtures	11,019	10,850
Total property, plant and equipment	154,718	148,970
Less accumulated depreciation	106,370	100,587
Net property, plant and equipment	48,348	48,383
Deferred income taxes	12,930	11,845
Goodwill	60,554	60,474
Other intangible assets, net of accumulated amortization of $32,510 in 2011 and $28,079 in 2010	37,682	41,319
Costs and estimated earnings in excess of billings on long-term contracts	8,538	8,611
Other assets	2,898	2,844
Total assets	390,928	372,944
LIABILITIES AND SHAREHOLDERS' EQUITY
Current installments of long-term debt	1,559	1,496
Accounts payable	35,135	24,979
Billings in excess of contract costs and estimated earnings on long-term contracts	6,293	8,593
Accrued compensation and related costs	13,697	20,626
Deferred revenue	11,130	10,897
Other current liabilities	8,826	6,946
Total current liabilities	76,640	73,537
Long-term debt, excluding current installments	40,109	27,476
Deferred income taxes	1,164	4,859
Other liabilities	11,711	10,052
Total liabilities	129,624	115,924
Shareholders' equity:
Preferred stock of $1.00 par value per share; Authorized 10,000 shares; none issued	0	0
Common stock of $0.10 par value per share; Authorized 75,000 shares; issued and outstanding 15,514 in 2011 and 15,311 in 2010	1,551	1,531
Additional paid-in capital	141,727	138,138
Accumulated other comprehensive income - foreign currency translation adjustment	14,623	9,898
Retained earnings	103,403	107,453
Total shareholders' equity	261,304	257,020
Commitments and contingencies
Total liabilities and shareholders' equity	$ 390,928	$ 372,944